Help! What is this tree?

It is deciduous. I don't think it has flowers; strictly for shade. I don't know if it has fruits or nuts. As you can see, it grows very tall/big. Its canopy seems pretty airy. Photos were taken today; the leaves are new growth. A few weeks back there were no leaves. From a distance, the bark seems smooth; close-up you can see that it's just a finer texture but not smooth. Help!!! What is this tree?

update: I think it's a Chinese Elm (otherwise called a Lacebark Elm?) or some variation thereof.